how can i set live method in jquery 50 times?

how can i set live method in jquery 50 times?

I am using javascript and ajax and i don't want to use any asp.net control .
When user type 50 and focusout from textboxt1 , a table with 50 row is dynamically generated,

$("#textbox1").focusout(function () {
      buildtable();
});

for first row :
var i = 1;
    $("#MyGrid1 tr td.txt2" + i + "").find("input.txt2" + i + "").live('focusout', (function () {
//        do anything
}));

and work for first row.

but if i use ::
 for(i=1;i<51;i++){
   $("#MyGrid1 tr td.txt33" + i + "").find("input.txt33" + i + "").live('focusout', (function () {
//        do anything
}));

}

the first i is 50 and then just work for last row. (obvious)
how can i attach live for all rows?